Canvas-stretcher.



PATENTED APR. 14, V1903.

W. J. DORGAN.

CANVAS STRE'IGHEB..

APPLIUATION FILED 001221, 1902.

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UNITED 'STATES PATENT OFFICE.

WILLIAM JAMES DORGAN, OFCHIOAGO, ILLINOIS, ASSIGNOR OF ONE-HALF TO ALBERTUS BIELENBERG, NEW YORK, N. Y. 1

cAnlvAs-STRETczl-lER.`

SPECIFICATION forming part of Letters Patent No. 725,422, dated VApril 14, 1903. Application filed October 21,1902. Serial No. 128,102. (No model.)

To a/ZZ w/wm; it' may concern:

Be it known that I, WILLIAM J AMES DOR- GAN, a citizen of the United States, andy a resident of Chicago, in the county of Cook 5 and State of Illinois, have invented a new and Improved Canvas-Stretcher, of which the following is a full, clear, and exact description.

The invention relates to frames for supporting the canvas for paintings; and its object is to provide a new and improved canvasstretcher which is simple and durable in construction, perfectly true, not liable to get out of shape, requiringno truing up before or after mounting the canvas thereon, and maintaining the canvas, after the painting is nished, in the propershape, thus requiring no remounting of the canvas previous to securingthe painting and its stretcherin a suitable frame. y

The invention consists of. novel features and parts and combinationsof the same, as will be more fully described hereinafter and then pointed out in the claims.

A practical embodiment of the invention is represented in the accompanying drawings,

forminga part of this'specification, in whichV` simllar characters of reference indicate corre- 3 5 bar shown in Fig. 3.

The improved canvas stretcher or frame consists of side bars A and A and end bars A2 A3, jointed together by havingone end of each bar formed with-a ruiter-tenon B and a 4o rectangular tenon O, of which the latter is adapted to engage a recessD on; the joint end of the adjacent bar, while'the miter-tenon B fits into a recess E, having a miter-shoulder, as plainly indicated in Fig. 3.

The tenons B and C are spaced apart, and the tenon B forms with the shoulder of the recess E a completemiter-joint on the front of the canvas-stretcher, while the tenon C of a bar extends at the rear thereof and at the inner portion to engage the recess D of the adjacent bar at the back of the same, as will be readily understood by reference to Fig. l.

Now by the arrangement described the ends of adjacent bars are fitted together at the front by a miter-joint and at the rear by a straight rectangular tenon engaging a correspondingly-shaped recess in the other bar. By this'arrangement the bars connected with each other remain at all times perfectly true. The front faces of the bars A, A', A2, and A3 are beveled downwardly and inwardly, as indicated in Figs. 2 and 5, sothatthe canvas is stretched over the outer edges of the bars and then back to the outery edges or back thereof to hold the can vas properly stretched in position on the stretcher.

By the arrangement described the stretcher i is not liable toget out of shape, and consequently requires no truing pp before or after mounting the canvas thereon, and the canvas is alwaysmaintained in proper` position on the frame, so that after the painting is finished the stretcher and its painting can be lreadily-inserted into a suitable frame.

As the` several bars are jointed together at right angles by the tenons O engaging the -corresponding recesses D, it is evident that the bars will always stand at right angles one to the other and produce af correspondingly strong and durable canvas-stretcher.

Having thus described my invention, I claim as new and desire to secure by Letters Patent* 1. A canvas-stretcher formed of bars adapted to be jointed together, each bar being provided at one end with tenons, one of which is of a reduced width, the other end of the bar having recesses corresponding in size, shape and relative position to the size, shape and relative position of the tenons, and adapted to receive said tenons; the recess adapted to receive the tenon of reduced width being spaced from the outer end of its bar, as speciof the bar having recesses corresponding in size, shape and relative position to the size, shape and relative position of the tenons and adapted to receive said tenons, the recess adapted to receive the rectangular tenen having its outer side Wall spaced from the end of its bar, as specied and for the purpose set forth.

3. A canvas-stretcher having bars jointed together to form a rectangular frame, each bar at one end provided on its front with a miter-tenon and on its back with a rectangular tenen spaced from the front miter-tenon and having its top portion cut away, the cooperating end of the adjacent bar having a niiter-shaped recess 0n its front side to snugly receive said miter-tenon and a rectangular recess spaced apart therefrom on its rear side, the sides of said rectangular tenen being snugly received between the side walls of said rear recess, as specified and for the purpose set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

WILLIAM JAMES DORGAN.

Witnesses:

LEO BISHOP, M. O. MARSCHKE. 

